[Bug tree-optimization/88223] [8 Regression] Wrong code for intrinsic memmove

[joseph at codesourcery dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=88223

--- Comment #12 from joseph at codesourcery dot com <joseph at codesourcery dot 
com> ---
This seems a reasonable enough example for punning to me, given that all 
accesses are via the union type.